<div class="header-height">
 <nav class="navbar nav-height navbar-fixed-top" role="navigation">
   <!-- Brand and toggle get grouped for better mobile display -->
   <div class="navbar-header">
     <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
       <span class="sr-only">Toggle navigation</span>
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
     <a class="navbar-brand" href="#"><img src="../assets/img/index-logo.png"></a>
   </div>
 
   <!-- Collect the nav links, forms, and other content for toggling -->
   <div class="collapse navbar-collapse navbar-ex1-collapse">
     <ul class="nav navbar-nav navbar-height">
       <li><h3>腾讯问卷</h3></li>
       <li><a href="#" class="active">创建问卷</a></li>
      <li>
        <a href="#">我的问卷</a>
      </li>
      <li>
        <a href="#">调查咨询</a>
      </li>
      <li>
        <a href="#">帮助中心</a>
      </li>
     </ul>
     <ul class="nav navbar-nav pull-right navbar-height">
       <li><a href="#">登录</a></li>
      <li><a href="#">注册</a></li>
     </ul>
   </div><!-- /.navbar-collapse -->
 </nav>
 
 
</div>